You know your astrology sign, your favorite dessert, and which football team you cheer for. But how well do you know your very own teeth?
If you've ever suffered from toothache, you know there's no pain quite like it. Has it ever made you stop and think about how such an important part of your anatomy is often ignored, though?
Sure, you brush your teeth once or twice a day and maybe you occasionally floss, but did you know tooth enamel is the hardest substance of your entire body?
If you answered "duh," this challenge will test your knowledge. Take this quiz to find out just how well you know your teeth: